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On the recordRead 8 Oct 202623 facts
strongSwan
strongSwan · founded 2005
Plans and prices
GPLv2 open-source license
Free
Open-source GPLv2; most components also have an optional commercial non-GPL license
Read 8 Oct 2026 · strongswan.org
Commercial license and support
Priced on request
Commercial non-GPL license available for most components; optional support has two response-time/SLA levels
Read 8 Oct 2026 · strongswan.org
On the record
- Access model
- vpnstrongswan.org · read 22 Sep 2026
- Admin control level
- advancedstrongswan.org · read 22 Sep 2026
- Audit logs
- Yesstrongswan.org · read 22 Sep 2026
- Authentication
- Authentication options include EAP methods, X.509 certificates, pre-shared keys, and IKEv2 multiple authentication exchanges.strongswan.org · read 8 Oct 2026
- Cryptography
- It supports NIST elliptic-curve groups, X25519, Ed25519, and multiple classic and post-quantum key exchanges, including ML-KEM.strongswan.org · read 8 Oct 2026
- Device posture
- Yesstrongswan.org · read 22 Sep 2026
- Distribution
- The download page links to distribution binary packages, source archives, a Docker image for trying the software, and the Android app.strongswan.org · read 8 Oct 2026
- IKE protocols
- It supports IKEv2 and IKEv1, IPv6 tunnel and transport connections, MOBIKE, NAT traversal, and IKEv2 message fragmentation.strongswan.org · read 8 Oct 2026
- Integrations
- A NetworkManager plugin integrates strongSwan with Linux desktops, and an Android app is available.strongswan.org · read 8 Oct 2026
- Key protection
- Private keys and certificates can be stored on smartcards through PKCS #11 or protected by a TPM 2.0.strongswan.org · read 8 Oct 2026
- Modularity
- Its plugin system can add cryptographic algorithms, credentials, authentication methods, configurations, and access to IPsec and network stacks.strongswan.org · read 8 Oct 2026
- Notable support limit
- The listed core developer offers development work and licensing, but not commercial configuration support.strongswan.org · read 8 Oct 2026
- Ownership
- The project page says secunet Security Networks AG acquired strongSwan's intellectual property rights in June 2022.strongswan.org · read 8 Oct 2026
- Project history
- strongSwan launched in 2005 as a fork of the discontinued FreeS/WAN project.strongswan.org · read 8 Oct 2026
- Purpose
- strongSwan implements Internet Key Exchange protocols to secure IP traffic in policy-based and route-based IPsec VPN scenarios.strongswan.org · read 8 Oct 2026
- Release signing
- The project says releases and security patches are signed with its published PGP key.strongswan.org · read 8 Oct 2026
- Security advisories
- The project publishes vulnerability advisories and machine-readable OSV records, with patches linked from advisories.strongswan.org · read 8 Oct 2026
- Site-to-site networking
- Yesstrongswan.org · read 22 Sep 2026
